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| Catalyst | Basicity (mmol g−1) | Basic strength (H_) | GC yield (%) |
|---|---|---|---|
| MCM-41 | 1.11 | H_ ≤ 7.2 | 2.96 |
| 2%Li/MCM-41 | 1.45 | 7.2 ≤ H_ ≤ 9.8 | 17.24 |
| 3%Li/MCM-41 | 2.03 | 7.2 ≤ H_ ≤ 9.8 | 22.25 |
| 4%Li/MCM-41 | 2.49 | 7.2 ≤ H_ ≤ 9.8 | 29.30 |
| 5%Li/MCM-41 | 4.70 | 9.8 ≤ H_ ≤ 15 | 58.77 |
| 6%Li/MCM-41 | 5.05 | 9.8 ≤ H_ ≤15 | 47.27 |
Reaction conditions: catalyst loading of 5 wt%, DMC to enriched glycerol molar ratio of 4 : 1, reaction temperature of 85 °C, and reaction time of 150 min.
